CHALK MARKERS 10-Pack w/Reversible Tip for Non-Porous Chalkboards, Non-Toxic Erasable Water-Based Liquid Chalk Pens for All-Purpose Decorations, Neon Bright Colors for Kids Art, Tip Replacer Included

I use these in my office to mark up advertisements on my office windows, and they work wonderfully. I also use them on my office whiteboard. I would just suggest that you do not use the red marker on a whiteboard, as it does stain. This only seems to be an issue with the red marker. Most of the stain comes off with some Windex, but if faint marks on your whiteboard bother you, don't use the red!Other than that, the markers write wonderfully, and I love using them to make coffee-house type designs on my office windows.

The colors that worked were bright and vibrant. My problem was with the brown marker( the reason I chose this pack). It looks like it has been used already and the color is almost black so it doesn't show up on a black chalkboard. All the other markers needed to be primed in order to get the ink onto the tip, but the brown tip was already primed and messy. The ink got all over my hands when I first opened it. Don't want to go through the hassle of returning them because the rest of the markers are new and bright. Guess I'll have to head to a craft store and see if I can find the brown I need.

These work great just like any chalk pen! For everyone who has had trouble with it staining the chalk board USE MR CLEAN WHITE EARASERS. All chalk pens leave an residue and that is the only thing that gets it off.Update: months later and a few uses later they still work well but I think some are running low😊

Once in the black board, you will not take it off. I even tried minrral spirits and in won't clean.

They are awesome. I had a kids party and we decorated pumpkins with them. The kids ranged from 2-9 and they were all able to do it with no adult assistance- other than getting the tips wetted and ready for use. They actually didn't want to stop working, even to eat pizza & cake! The color went on the pumpkins very smoothly, not too wet & it stayed on. It washed right off of the kids too! We were all very impressed.

Don't buy these if you have a "painted" chalkboard. We painted ours on and framed it and these markers "leave a mark" They are really nice quality, Just disappointed I can't use them for the purposes I purchased them for. KV

The colors are very bright. I used them to write on a black poster board. I don’t know if that’s the reason why certain colors were more difficult to use than others. Some were very smooth and easy to use and others were just not having it. Overall they are decent 👍

In short, I love them. I have a black chalk board and the colors look really sharp on them (haven't tried black or brown yet, purple shows up well enough on black, but not as neon-looking as the other colors). I followed the first-time use instructions and haven't had any problems. They erase well. These are my first liquid chalk markers, so I don't have anything to compare them to, but I am very satisfied.